---
title: Link nodes in the Relationship Graph
description: Use Relationship Graph to link the nodes. Use filters to select specific nodes to investigate.
locale: en-US
canonical_url: https://www.servicenow.com/docs/r/australia/security-management/threat-intelligence-security-center/tisc-link-nodes.html
release: australia
product: Threat Intelligence Security Center
classification: threat-intelligence-security-center
topic_type: task
last_updated: "2026-03-12"
reading_time_minutes: 1
keywords: [Link nodes, Relationship graph]
breadcrumb: [View details in Visualizer, Observables, TISC Library Repository, Threat Intel Library, Use, Threat Intelligence Security Center, Security Operations]
---

# Link nodes in the Relationship Graph

Use Relationship Graph to link the nodes. Use filters to select specific nodes to investigate.

## Before you begin

Role required: sn\_sec\_tisc.analyst

## Procedure

1.  Navigate to **Workspaces** > **Threat Intelligence Security Center** > **Threat Intel Library** > **Observables** > **All Observables**.

2.  Open a record.

3.  Select the **Relationship Graphs** tab.

4.  Select the node.

5.  Select **Link**.

    **Note:** This action is only available at a home node level.

    \[Omitted image "tisc-link-node-actions.png"\] Alt text: TISC link nodes

6.  Select the **Entity type** from the list, for example, `Observable`.

7.  Select the required entities from the list, and select **Add**.

    The entity is added to the node and the relationship graph displays the linking.

8.  To add another Entity type, repeat steps 4-7.

9.  Use the filter to select specific nodes from the list.

10. To modify a link name, select the link and select **More actions** > **Edit**.

11. To unlink the related records from the nodes, select **Unlink**.

12. Select **Show details** to see the associated observables data.


**Parent Topic:**[View details in Visualizer](https://raw.githubusercontent.com/ServiceNow/ServiceNowDocs/australia/markdown/australia/security-management/threat-intelligence-security-center/objects-visualizer.md)